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kmod/core: move a couple of functions

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Move kpatch_get_*_func a little higher in the file where they will be
needed for the next commit.
This commit is contained in:
Josh Poimboeuf 2014-04-22 09:57:57 -05:00
parent 2984b53d21
commit 48cc3a409e
1 changed files with 23 additions and 23 deletions
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46
kmod/core/core.c
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@ -84,6 +84,29 @@ enum {
}; };
static atomic_t kpatch_operation; static atomic_t kpatch_operation;
static struct kpatch_func *kpatch_get_func(unsigned long ip)
{
struct kpatch_func *f;
/* Here, we have to use rcu safe hlist because of NMI concurrency */
hash_for_each_possible_rcu(kpatch_func_hash, f, node, ip)
if (f->old_addr == ip)
return f;
return NULL;
}
static struct kpatch_func *kpatch_get_committed_func(struct kpatch_func *f,
unsigned long ip)
{
/* Continuing on the same hlist to find commited (!updating) func */
if (f) {
hlist_for_each_entry_continue_rcu(f, node)
if (f->old_addr == ip && !f->updating)
return f;
}
return NULL;
}
void kpatch_backtrace_address_verify(void *data, unsigned long address, void kpatch_backtrace_address_verify(void *data, unsigned long address,
int reliable) int reliable)
{ {
@ -214,29 +237,6 @@ out:
return ret; return ret;
} }
static struct kpatch_func *kpatch_get_func(unsigned long ip)
{
struct kpatch_func *f;
/* Here, we have to use rcu safe hlist because of NMI concurrency */
hash_for_each_possible_rcu(kpatch_func_hash, f, node, ip)
if (f->old_addr == ip)
return f;
return NULL;
}
static struct kpatch_func *kpatch_get_committed_func(struct kpatch_func *f,
unsigned long ip)
{
/* Continuing on the same hlist to find commited (!updating) func */
if (f) {
hlist_for_each_entry_continue_rcu(f, node)
if (f->old_addr == ip && !f->updating)
return f;
}
return NULL;
}
/* /*
* This is where the magic happens. Update regs->ip to tell ftrace to return * This is where the magic happens. Update regs->ip to tell ftrace to return
* to the new function. * to the new function.